Electric storage battery.



H. K. HESS.

ELEGTRIG STORAGE BATTERY.

APPLICATION FILED $EPT.24,1907.

Patented Feb. 9, 1909.

UNITED PATENT OFFICE.

HENRY K. HESS, OF PHILADELPHIA, PENNSY VIANIA, ASSIGNOR OF ONE-HALF TO THOMAS O. PEIROE, OF PHILADI IT PENNSYLVANIA.

nLnc'rnIo sroaacn BATTERY;

Specification of Letters Patent.

Application filed September 24, 1907. Serial No. 394,337.

Patented Feb. 9, 1909.

To all whom it may concern:

Be it known that I, HENRY K. Hess, of Philadelphia, in the county of Philadelphia, in the State of Pennsylvania, haveinvented new and useful Improvements in Electric Storage Batteries, of. which the following, taken in connection with the accompanying -drawings, is a full, clear,.and exact description.

I considerable degree, thereby producing excessive strain upon and freguently' disrupting or'distorting the grid an also tending to disintegrate the active material and causing it to fall to the bottom of the cell thereby producing short circuits and destroying the eificiency of the battery.

My main object is to roduce a comparatively light, durable and ighly efiicient grid which is capable of expansion and contraction to compensate for the similar action of A the active material and at the same time to render such grid capable of retaining the bodyof active material intact'. In other words, I have sought to obviate as-far as practicable the liability to disinte ration of oth the grid and active materia confined therein. v

A further object --is to assemble the electrodes and suitable confining lates in such manner that the confining p ates. serve to additionally retain the active material against disintegration so as to avoid excessive accumulations of such material in the cell which might produceshort circuits or otherwise reduce the efiiciency of the battery.

A still further object is to make these-confining plates serve the additional purpose ofinsulating the adjacent electrodes one from the other and at the same time to rovide them with perforations through which the electrolytemay circulate.

Other more specific objects will be broughtout in the iolluwing description.

Figure 1 IS a perspective View partly broken away of an electric storage battery embodying the features of my invention.

Fig. 2 is a top plan partly in section ofthe storage battery seen in Fig. 1. are perspective views res ectively of one of or insulator. partitions. 1

In order to demonstrate the practicability of my invention 1 have shown a cell 1 adapted to contain a suitable electrolyte and a series of opposed electrodes -2 and 3 which are spaced apart and held in such po sition by intervening division or confin ng plates -4-. The cell 1'may be made of anysuitable insulatin material as rubber, por-' of comparatively thin lead strips or ribbons 6- the intermediate portions of which are Figs. 3 and 4 the electrodes and one ofit e confining plates bent into the form of return loops. These strips or ribbons 6 which are made of thin metallic lead, somewhat Z-shape in cross section, as shown in Fig. 2, are arranged side by side in tiers with their intermediate portions bent into the form of-loops and their ends lead burned or flatwise secured to and between the meeting faces of the marginal strips -5, some of the loo s at their junctions with the marginal strips eing also lead burned or flatwise secured by suitable tie pieces 7 to the inner faces of the marginal strips -5- thereby roducing a grid made up of strips of metal 10 lead, the transverse strips or ribbons 6- bein corrugated lengthwise and transversely to r ceive and retain an active material '8 of litharge, or other suitable substance.

The opposed electrodes are divided 'and'insulated one from the other, by plates 4 of wood or other suitable insulating material and Vertical strips 10 which are seated in grooves 1 1'1n the plates 4, said plates being'a plied too pos1tefaces of the alternate electrod rial therein, said plates being provided with a series of a ertures 12 to permit the circulation oi the electrolyte therethrough from one electrode to the other. The invention, however, lies more particularly in the. construction of thegrid forming each electrode and in the use of the confining plates in connection therewith, the electrode es to furt er confine the active mate-' inter osed between and lead burned or fiatframe so that the other tiers of lead strips or beingficomposed, as described, of similar marginal strips of metallic lead bent into rectangular form and applied to each other face to face constituting a frame for receiving and supporting a series of tiers of metallic lead strips corrugated lengthwise to form a series of loopsand preferably corrugated transversely and having their ends wise secured to the marginal strips of the' corrugated ribbons are securely fastened at their ends to the frame while the intermediate'portions of the outer tiers are similarly fastened to the frame by the tie-pieces 7-, which are-also lead burned to the frame and to the adjacent loops. In addition to this, the invention further consists in providing confining plates of insulating material between the electrodes, which also serve to further confine the active material within the grids and to insulate them one from the other. I

What I claim is: I

1. An electrode for storage batteries consisting of a substantially rectangular open frame composed of contacting lead strips secured together face to face, and a series of lead strips arranged in horizontal tiers, one above the other and having their ends interposed between the strips of the frame and their intermediate portions bent in the form of upright open loo )5.

' 2. An electrode or storage batteries consisting of a substantially rectangular open frame composed of contacting lead strips secured together face to face, and a series of lead strips arranged in horizontal tiers, one above the other and having their ends inter posed between the strips of the frame and their intermediate portions bent in the form of upright open 'loo s, the portions of the strips forming the oops being corrugated transversely.

In witness whereof I have hereunto set my hand this seventh day of September 1907. HENRY K. HESS. Witnesses: 1

KATHERINE M. COLLINS,

THOMAS O. PEIRCE. 

